// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ipc/ipc_test_sink.h"

#include <stddef.h>
#include <stdint.h>

#include "build/build_config.h"
#include "ipc/ipc_listener.h"
#include "ipc/ipc_message.h"

namespace IPC {

TestSink::TestSink()
{
}

TestSink::~TestSink()
{
}

bool TestSink::Send(Message* message)
{
    OnMessageReceived(*message);
    delete message;
    return true;
}

bool TestSink::Connect()
{
    NOTIMPLEMENTED();
    return false;
}

void TestSink::Close()
{
    NOTIMPLEMENTED();
}

base::ProcessId TestSink::GetPeerPID() const
{
    NOTIMPLEMENTED();
    return base::ProcessId();
}

base::ProcessId TestSink::GetSelfPID() const
{
    NOTIMPLEMENTED();
    return base::ProcessId();
}

bool TestSink::OnMessageReceived(const Message& msg)
{
    base::ObserverListBase<Listener>::Iterator it(&filter_list_);
    Listener* observer;
    while ((observer = it.GetNext()) != NULL) {
        if (observer->OnMessageReceived(msg))
            return true;
    }

    // No filter handled the message, so store it.
    messages_.push_back(Message(msg));
    return true;
}

void TestSink::ClearMessages()
{
    messages_.clear();
}

const Message* TestSink::GetMessageAt(size_t index) const
{
    if (index >= messages_.size())
        return NULL;
    return &messages_[index];
}

const Message* TestSink::GetFirstMessageMatching(uint32_t id) const
{
    for (size_t i = 0; i < messages_.size(); i++) {
        if (messages_[i].type() == id)
            return &messages_[i];
    }
    return NULL;
}

const Message* TestSink::GetUniqueMessageMatching(uint32_t id) const
{
    size_t found_index = 0;
    size_t found_count = 0;
    for (size_t i = 0; i < messages_.size(); i++) {
        if (messages_[i].type() == id) {
            found_count++;
            found_index = i;
        }
    }
    if (found_count != 1)
        return NULL; // Didn't find a unique one.
    return &messages_[found_index];
}

void TestSink::AddFilter(Listener* filter)
{
    filter_list_.AddObserver(filter);
}

void TestSink::RemoveFilter(Listener* filter)
{
    filter_list_.RemoveObserver(filter);
}

#if defined(OS_POSIX) && !defined(OS_NACL)

int TestSink::GetClientFileDescriptor() const
{
    NOTREACHED();
    return -1;
}

base::ScopedFD TestSink::TakeClientFileDescriptor()
{
    NOTREACHED();
    return base::ScopedFD();
}

#endif // defined(OS_POSIX) && !defined(OS_NACL)

} // namespace IPC
